Analysis

  • max time kernel
    137s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-01-2024 17:43

General

  • Target

    2024-01-25_191333d8394582475727690afaa8f41a_cryptolocker.exe

  • Size

    31KB

  • MD5

    191333d8394582475727690afaa8f41a

  • SHA1

    2e24a0c9e42891b839b0eea5a4c8f3556e853227

  • SHA256

    897d68acd781294c9c7fdb207d2b4369332988339771a76804cc42f3bbb40f4e

  • SHA512

    41c22dbd09aca953f7f3f974a6bd3d6ed6b1478ab4b1e913ecf8d83e2e8077434b49b6e3295aba554a9d8c7710aaa94a8cee6e1ef493863387307df492908111

  • SSDEEP

    384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6ckJp0qAMubA:bAvJCYOOvbRPDEgXRc+BA/bA

Score
10/10

Malware Config

Signatures

  • Kinsing

    Kinsing is a loader written in Golang.

  • Detection of CryptoLocker Variants 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-25_191333d8394582475727690afaa8f41a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-25_191333d8394582475727690afaa8f41a_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4008
    • C:\Users\Admin\AppData\Local\Temp\demka.exe
      "C:\Users\Admin\AppData\Local\Temp\demka.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      PID:4384

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\demka.exe

    Filesize

    32KB

    MD5

    6f81165fefd3030bc9a0421d853157d0

    SHA1

    d5f3c7e7859d59568cbfd50f313c23809dd64e3a

    SHA256

    89f4baff6209770d54a219e883b802d5319c82d4275d5da1ebdd200efd53b88c

    SHA512

    2459308b099ac74eefb954a133cc1b71771d20bf321381f204d2b6a6a5c778eff10e32b695a586f47a9bfa52172bee049758f42dfbe95d4dd1ea3a6c8668ccd4

  • memory/4008-0-0x0000000002250000-0x0000000002256000-memory.dmp

    Filesize

    24KB

  • memory/4008-1-0x0000000002250000-0x0000000002256000-memory.dmp

    Filesize

    24KB

  • memory/4008-2-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/4384-20-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB